Mac: Keeping track of sales and discounts in the Mac App Store or iTunes App Store can be a bit difficult. If you're a frugal app shopper, AppyDays makes it bit easier by tracking price drops and allowing you to search for sales easily.

AppyDays allows you to filter and search for apps in a couple different ways. You can filter by Mac, iPhone, or iPad, as well as by the ratings. Also handy is the ability to mark apps as favorites so you can easily check back to see when they're on sale. AppyDays doesn't do much else, but if you find yourself overwhelmed with the app stores and want another means to search for discounts with better filters it does the trick. Of course, you can always hit up our Daily App Deals for our picks as well. AppyDays is a free download in the Mac App Store.